<?php


//数据库操作
$servername = "127.0.0.1";
$username = "root";
$password = "root";
$dbname = "users";
$conn = mysqli_connect($servername, $username, $password,$dbname);
if (!$conn) {
    die("1111连接失败    ");
}else{
    $sql = "";
    echo "2222连接成功";
    //$result = $conn->query($sql);
}